Environmental Engineering Reference
In-Depth Information
TABLE 3.2
Toxicity Characteristic Constituents and Regulatory Levels
EPA HW
No.
Regulatory
Level
Types
Contaminants
Metals
Arsenic
D004
5.0 mg/L
Barium
D005
100.0 mg/L
Cadmium
D006
1.0 mg/L
Chromium
D007
5.0 mg/L
Lead
D008
5.0 mg/L
Mercury
D009
0.2 mg/L
Selenium
D010
1.0 mg/L
Silver
D011
5.0 mg/L
Volatile Organic
Compounds
Benzene
D018
0.5 mg/L
Carbon tetrachloride
D019
0.5 mg/L
Chlorobenzene
D021
100.0 mg/L
Chloroform
D022
6.0 mg/L
1,2-Dichloroethane
D028
0.5 mg/L
1,1-Dichloroethylene
D029
0.7 mg/L
Methyl ethyl ketone
D035
200.0 mg/L
Tetrachloroethylene
D039
0.7 mg/L
Trichloroethylene
D040
0.5 mg/L
Vinyl chloride
D043
0.2 mg/L
Pesticides
Chlordane
D020
0.03 mg/L
Endrin
D012
0.02 mg/L
Heptachlor (and its epoxide)
D031
0.008 mg/L
Lindane
D013
0.4 mg/L
Methoxychlor
D014
10.0 mg/L
Toxaphene
D015
0.5 mg/L
Herbicides
2,4-D
D016
10.0 mg/L
2,4,5-TP (Silvex)
D017
1.0 mg/L
Semivolatile Organic
Compounds
o-Cresol
D023
200.0 mg/L (a)
m-Cresol
D024
200.0 mg/L (a)
p-Cresol
D025
200.0 mg/L (a)
Cresol
D026
200.0 mg/L (a)
1,4-Dichlorobenzene
D027
7.5 mg/L
2,4-Dinitrotoluene
D030
0.13 mg/L (b)
Hexachlorobenzene
D032
0.13 mg/L (b)
Hexachlorobutadiene
D033
0.5 mg/L
Hexachloroethane
D034
3.0 mg/L
Nitrobenzene
D036
2.0 mg/L
Pentachlorophenol
D037
100.0 mg/L
Pyridine
D038
5.0 mg/L
2,4,5-Trichlorophenol
D041
400.0 mg/L
2,4,6-Trichlorophenol
D042
2.0 mg/L
Source: 40 CFR 261.24
(a): If o-, m- and p-cresol concentrations cannot be differentiated, the total cresol (D026) concen-
tration is used. The regulatory level of total cresol is 200 mg/L.
(b): The quantification limit is greater than the calculated regulatory level. The quantification level
therefore becomes the regulatory level.
 
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